KT-CV520Off-air band-selective cellular repeater
Medium-gain off-air band-selective LTE B3 repeater, +23 dBm, with NMS
The full parameter table below is taken from the official datasheet. The PDF version — with dimension drawings and the complete standard-compliance table — is released on request, so we can send the exact revision your project needs.
Kingtone JIMTOM® LTE B3 Off-air Band Selective Repeater Datasheet (EN, 3 pages)
Overview
Downlink signals from the base station are received by the donor antenna and amplified to the service antenna; the uplink is received at the service antenna, amplified through a low-noise amplifier and an uplink PA, and retransmitted to the base station. Band and working bandwidth are configured in software rather than by changing hardware.
- Medium gain with 85 dB downlink gain and 80 dB uplink — room for feeder and distribution loss
- Off-air band-selective: band and working bandwidth configured in software
- AGC and ALC with 30 dB attenuation in 1 dB steps
- Frequency and bandwidth tuning both feasible
- NMS included: local RS232 console plus optional remote monitoring over SMS or GPRS modem
- Remote monitoring reads alarm, signal level, power supply, I/O power and VSWR, and allows gain changes and restarts
- Local LCD for gain setting, compact 302 × 270 × 60 mm enclosure
Parameter tables
Values are transcribed from the KT-CV520 official datasheet. Where a range is given it is the datasheet's own range, not a rounded figure.
Radio
- Output power (downlink)
- +23 ± 2 dBm
- Output power (uplink)
- +20 ± 2 dBm
- Maximum gain (downlink)
- 85 ± 3 dB
- Maximum gain (uplink)
- 80 ± 3 dB
- Automatic gain control
- Support
- Frequency tuning feasibility
- Feasible
- Bandwidth tuning feasibility
- Feasible
- Frequency range (uplink)
- 1760–1780 MHz (working in-band, customisable)
- Frequency range (downlink)
- 1855–1875 MHz (working in-band, customisable)
- Working bandwidth
- 20 MHz
- Duplex mode
- FDD
- Noise figure
- ≤ 6 dB
- Delay
- ≤ 5 µs
- Gain adjustment range / step
- 30 dB / 1 dB step
- Gain adjustment error
- 0–20 dB: ≤ 1 dB; ≥ 21 dB: ≤ 1.5 dB
- Ripple
- ± 5 dB in bandwidth
- Automatic level control
- ≥ 20 dB, auto gain setting
- Spectrum mask
- Complies with 3GPP TS 36.143
- Spurious emissions
- ≤ −36 dBm (9 kHz–1 GHz); ≤ −30 dBm (1–12.75 GHz)
- Maximum RF input level
- +5 dBm
- Minimum RF input level
- −70 dBm
- Maximum RF input without damage
- 10 dBm
- VSWR
- ≤ 1.5
- Impedance
- 50 Ω
- Connector
- N-Female
Mechanical and power
- Dimension
- 302 × 270 × 60 mm
- Weight
- < 7 kg
- Maximum power consumption
- ≤ 80 W @ total
- Power supply
- AC 100–264 V, 50/63 Hz to DC 12 V / 2 A
- Operating temperature
- −5 to +75 °C
- Storage temperature
- −5 to +75 °C
- Operating humidity
- ≤ 95%
- Environmental class
- IP55
- RF connector
- N-Female, 50 Ω
- MTBF
- ≥ 50 000 hours
Monitoring system
- Local monitoring
- GUI base over RS232 cable
- Parameter setting
- Gain UL & DL
- Status monitoring
- Alarm & signal level; power supply, input/output power (UL/DL), temperature, VSWR
- Firmware download
- Yes
- Repeater restart function
- Yes
- Battery
- Yes
- Remote monitoring
- SMS or GPRS modem, optional
- Configuration of server
- Optional
- Remote monitoring server
- GUI base; parameter setting for gain UL & DL; status monitoring of alarm, signal level, power supply, I/O power and VSWR
Indicators are based on ETSI standard testing. Availability varies depending on the laws and regulations of each country. Unless otherwise specified, all displayed specifications are typical and subject to change without prior notice.
- The datasheet gives the working frequency range (1760–1780 MHz uplink, 1855–1875 MHz downlink) and says it is customisable. That range is narrower than the full B3 band allocation (1710–1785 MHz uplink, 1805–1880 MHz downlink) — the two are different things and should not be quoted interchangeably.
Where our documents disagree with each other, we show both readings and confirm the value for your variant before you order. Tell us the model and band you need.
Certification status for this model is not recorded in this library. Do not state that it is certified without checking the certificate; ask us for the specific model number when you need the certificate.
See the certification registerKT-CV520 datasheet and configuration quote
Two ways to proceed, depending on how far you are in your selection.
Download the datasheet
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The KT-CV520 datasheet PDF is released on request and is not yet enabled for direct download here. Use the quote form below and we will send it with a configuration proposal.
Request a configuration proposal
Tell us the band, the scenario and the quantity. A sales engineer replies with the matching datasheet revision, the certificate numbers for that variant, RF link budget guidance and a priced configuration.
- Datasheet PDF with dimension drawings
- Certificate numbers covering your variant
- RF link budget guidance for your scenario
- Compatible accessory and antenna options
Specification tables last reviewed 2026-10-15.